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Citation: Yuanfu Zhang, Jinrong Zhang, Zijing Ren, Xifang Zhang, Dongli Shang, Linjie Wei, Rui Li, Xia Li, Qingwang Xue, Wei Zhang, Shuhao Wang. 以金纳米粒子为指示剂的法扬司法测定氯离子[J]. University Chemistry, ;2022, 37(3): 210600. doi: 10.3866/PKU.DXHX202106002 shu

以金纳米粒子为指示剂的法扬司法测定氯离子

School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong Province, China

Corresponding author: Yuanfu Zhang, yuanfu-nice@hotmail.com
Received Date: 2 June 2021

将纳米材料引入到滴定分析法中，利用柠檬酸钠还原氯金酸法制备了带负电荷的纳米金，然后，以纳米金为吸附指示剂，利用纳米金局部表面等离子体共振特性来确定滴定终点，从而建立了检测氯离子的新型法扬司法。研究表明，该方法在毫摩尔级可准确测定氯离子，并且废液可通过配位反应、沉淀反应和氧化还原反应，将金和银回收再利用，从而降低成本并减少污染。通过本实验的实践，使学生接触到学科的前沿领域，激发学生对科学研究的兴趣，培养学生的科研探究能力，推动绿色化学在本科教学中的应用。
- Gold nanoparticles,
- Adsorption indicator,
- Fajans method,
- Green chemistry
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